Urinal.



Patented Ian. 2, I900. G. W. KNAPP. I

U B I N A L (Application filed Feb. 13, 1.899.)

(No Model.)

WITN E55 E5:

aw. W GWW UNITED STATES ATENT OFFICE.

GEORGE W. KNAPP, OF STONEI-IAM, MASSACHUSETTS, ASSIGNOR TO THE SMITH d5ANTHONY COMPANY, OF BOSTON, MASSACHUSETTS.

URlNAL.

SPECIFICATION forming part of Iletters Patent No. 640,666, dated January2, 1900. Application filed February 13, 1899. Serial No. 705,367- (Nomodel.)

To all 107mm it may concern:

Be it known that I, GEORGE W. KNArP, of Stoneham, in the county ofMiddlesex and State of Massachusetts, have invented certain new anduseful Improvements in Urinals, of which the following is aspecification.

This invention has relation to urinals, and has for its object toprovide certain improvements therein to render them more difficult toclog and overflow. Urinals are as a general rule placed in buildingswhere they are used by the public generally, and, either throughignorance or wilfulness, foreign or waste inatter-such as pieces ofpaper, orange orbanana peels, &c.are thrown into them, frequentlyclosing the discharge-apertures and not only preventing the passage ofthe water and urine, but also causingthem to overflow.

The present invention consists of a urinal having a narrow substantiallyvertical integral rib extending across the discharge-duct and into thebowl, so as to divide .the duct into two parts and render it difficult,if not practically impossible, for waste matter to close both of them,all as illustrated upon the accompanying drawings, described in thefollowing specification, and pointed out in the appended claim.

Reference is to be had to the accompanying drawings, forming a parthereof, and to the letters and figures of reference marked thereon, thesame reference characters indicating the same parts or features whereverthey occur.

Of the drawings, Figure 1 represents in vertical section a urinalembodying my invention. Fig. 2 represents a rear elevation of the same.Fig. 3 represents a section on line 3 3 of Fig. 1. Fig. 4 represents aperspective view of the bowl of the urinal.

Referring to the drawings, a indicates the bowl of a siphon-jet urinalembodying the invention, although it will be understood that the lattermay be equally well embodied in a urinal of any other type. Said bowlhas a large front opening, the lower edge 5 of which is raised above thebottom 6 of the bowl. Z) indicates the liquid-inlet duct, whichcommunicates with a retarding-chamber b, the lower end of said ductcommunicating with the outlet-passage. The said outlet-passagecommunicates with the bottom of the bowl through a large mouth 7, and itextends upwardly therefrom, as at 8, behind the back wall a of the bowl,and above the lower edge of said wall communicating with adownwardly-extending passage 9, which terminates in a horizontal neck10. Ilhe bowl a, back 0, and outletpassage 8 form a trap adapted toretain a body of water in position to seal the outlet-passage, as shownin Fig. 1. The passages 8 9 are arranged to form a siphon, of which thepassage 9 is the longer leg, so that it will act to draw the water fromthe bowl.

The present invention consists of a rib d,

' extending across the mouth 7. This rib is substantially vertical andcomparatively thin, so as not to obstruct the passage of liquid throughthe trap, and it is curved upwardly so as to project from the bottominto the bowl. Its ends are supported by the back wall a of the bowl andthe front wall 11 of the outletpassage, with which they are integral.

When foreign matter is thrown into the bowl, it is held up from thebottom thereof by the rib and is prevented from being drawn entirelyacross the mouth 7, so as to close it.

Even when paper is thrown into the bowl the rib holds it away from themouth of the outlet and permits the discharge of the contents of thebowl beneath it. This rib not only holds away from the mouth of theoutlet any paper or other pieces of flexible waste matter, but itpermits the ends of any such pieces of paper that are caught by the ribto hang down on either side of the rib without obstructing the outflowto any degree, there being no small perforations on either side of therib over which paper or other flexible substances can lie to obstructsuch perforations.

Thus my invention provides a practically free outlet, permitting thepassage of liquid and small solid objects, but effectually prevents thechoking of the outlet and the consequent fouling and possible overflowof the urinal.

I claim In testimony whereof I have affixed my sig- A urinal having abowl, an outlet from the nature in presence of two Witnesses. bottom ofsaid bowl, and a narrow substantially vertical integral rib havingparallel 5 sides and extending diametrically across the Vituosses:

mouth of said outlet and raised above the bot- MARCUS B. MAY, tom of thebowl. PETER W'. PEZZETTL GEORGE W. KNAPP.

